Posteo Alternatives

One of the most popular alternatives to Posteo is Proton Mail, which is open source with a free version. Other popular alternatives are Gmail, Tuta Mail, Google Calendar and Proton Calendar. You're spoiled for choice with WebMail Providers like Posteo: we list more than 50 alternatives for Android, iPhone, iPad, Mac and Windows.

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Posteo alternatives page was last updated Aug 23, 2026

Inbox.eu
Like
Privacy focused Latvian email service.
Cost / License
Paid
Proprietary
Application type
WebMail Provider
Origin
Latvia
EU
Platforms
Online
Android
iPhone
iPad
Latvia
EU
+3
Good alternative?Is Inbox.eu a good alternative to Posteo?
mail2world
3 likes
the free email that has everyone talking!.
72 mail2world alternatives
Cost / License
Freemium
Proprietary
Application typeApplication types
WebMail Provider
Calendar
Origin
United States
Platforms
Online
Good alternative?Is mail2world a good alternative to Posteo?
MeMail.com
2 likes
The ultimate email service for personal, professional and business use.

Unique Email Addresses MeMail gives you the ability to get the email address that best represents you! 1000s of email addresses for fun, personal or business use.

Ad-Free & Secure Work Space The MeMail.
Cost / License
Paid
Proprietary
Application type
WebMail Provider
Platforms
Online
Good alternative?Is MeMail.com a good alternative to Posteo?
Ad
Proton Mail
Proton Mail provides secure email services with end-to-end encryption, ensuring data protection. Swiss-based and outside US jurisdiction, it offers a free version to champion privacy as a human right. Fully accessible on any devi...

https://proton.me
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Northmail
3 likes
NorthMail – Simple, Secure Email Access

NorthMail provides fast, secure, and reliable email access exclusively for NorthMail users. Designed for simplicity and privacy, our app lets you effortlessly manage your emails, calendar, and contacts directly from your iPhone.

Key Featu.
55 Northmail alternatives
Cost / License
Freemium
Proprietary
Application typeApplication types
WebMail Provider
Email Client
Origin
Canada
Platforms
Online
Android
iPhone
iPad
Canada
Good alternative?Is Northmail a good alternative to Posteo?
Rediffmail Enterprise
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Secure Business Email hosting for your company with spacious mail storage & advanced anti-virus. Stay connected to your market and employees.
40 Rediffmail Enterprise alternatives
Cost / License
Paid
Proprietary
Application type
WebMail Provider
Origin
India
Platforms
Online
Good alternative?Is this a good alternative to Posteo?
Mailim
1 like
Mailim offers a fast and secure e-mail service. You can now create an e-mail address with Mailim; start sending and receiving emails on your new e-mail account.
Cost / License
Free
Proprietary
Application type
WebMail Provider
Origin
Türkiye
Platforms
Online
Android
iPhone
Android Tablet
HUAWEI AppGallery
iPad
Türkiye
+3
Good alternative?Is Mailim a good alternative to Posteo?
DNMX
Like
DNMX or Dark Net Email Exchange is a dark net email provider that allows anyone to create an email account anonymously and receive/send emails to the clear net.
51 DNMX alternatives
Cost / License
Freemium
Proprietary
Platforms
Online
Good alternative?Is DNMX a good alternative to Posteo?
Safe-mail.net
2 likes
High security web-based e-mail system which extends considerably the email system to much more than currently exists.
Cost / License
Freemium
Proprietary
Application type
WebMail Provider
Platforms
Online
Good alternative?Is Safe-mail.net a good alternative to Posteo?
Horizon Mail
Like
Premium email, all at no cost. Join Horizon today and claim your premium inbox.
Cost / License
Freemium
Proprietary
Application type
WebMail Provider
Platforms
Online
Good alternative?Is Horizon Mail a good alternative to Posteo?
Ethical Mail
1 like
Ethical Mail is an email provider not-for-profit organisation + we offer all the best bits of email communication, but without intrusive ads + take sustainability seriously and limit our impact on the environment by using green power + carbon neutral servers.
Cost / License
Paid
Proprietary
Application type
WebMail Provider
Origin
Australia
Platforms
Online
Good alternative?Is Ethical Mail a good alternative to Posteo?
M
M
MA Calendar
1 like
The only fully-functional open-source calendar app with Material You.
Cost / License
Free
Open Source (GPL-3.0)
Application type
Calendar
Origin
United States
Platforms
Android
F-Droid
Obtainium
United States
M
Good alternative?Is MA Calendar a good alternative to Posteo?
Webmail.ca.za
2 likes
Free email, file storage, sms and more.
Cost / License
Free
Proprietary
Application type
WebMail Provider
Origin
South Africa
Platforms
Online
Good alternative?Is Webmail.ca.za a good alternative to Posteo?

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